// Package main ... package main import ( "encoding/json" "fmt" "log" "net" "net/http" "github.com/go-rod/rod" ) // This example demonstrates how to set a HTTP header on requests. func main() { host := headerServer() page := rod.New().MustConnect().MustPage(host) page.MustSetExtraHeaders("X-Header", "my request header") page.MustNavigate(host) res := page.MustElement("#result").MustText() log.Printf("received headers: %s", res) } // headerServer is a simple HTTP server that displays the passed headers in the html. func headerServer() string { l, _ := net.Listen("tcp4", "127.0.0.1:0") go func() { _ = http.Serve(l, http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) { buf, err := json.MarshalIndent(req.Header, "", " ") if err != nil { http.Error(res, err.Error(), http.StatusInternalServerError) return } _, _ = fmt.Fprintf(res, indexHTML, string(buf)) })) }() return "http://" + l.Addr().String() } const indexHTML = `